Improvement in street-sprinklers



J. HOFFMAN Street-Sprinkler.

ATTORNEYS.

N. PETERS, PHOTO LITHOGRAPHER WASHINGTON D c UNITED STATES PATENTOEEIoE.

JOHN HOFFMAN, OF TOLEDO, OHIO.

IMPROVEMENT IN STREET-SPRINKLERS.

Specification forming part of Letters Patent No. 196,016, dated October9, 1877; application filed July 9, 1877.

To all whom it may concern Be it known that I, JOHN HOFFMAN, of Toledo,in the county of Lucas and State of Ohio, have invented a new andImproved Street- Sprinkler, of which the following is a specification:

In the accompanying drawing, Figure 1 represents a vertical transversesection of my improved street-sprinkling device, shown as attached tothe curb-stone; and Fig. 2 is a front View of the same, partly insection, on the line 00 m, Fig. 1.

Similar letters of reference indicate corresponding parts.

My invention relates to improvements in street-sprinklers; and consistsin the employment of aperforated pipe attached to a streetcurb orsimilar support, and connected with a hydrant or water-supply, theperforated pipe being provided with a sliding cover or cap havingperforations, which may be made to register, or partly register, withthe perforations in the pipe, or to close entirely the perforations, soas to vary or cut off the supply of water, as hereinafter more fully setforth.

In the accompanying drawing, A represents a perforated pipe, attached byguide-staples s to the outer face of a street curb-stone. The perforatedpipe is connected by a suitable pipe or pipes with a hydrant,B, orwater-main.

O represents a cap, partially covering and concentric with theperforated pipe A, and provided with perforations and a recessed lug, u,at its end, by means of which it may he slid back and forth in theguides s by means of the hand-lever D, the lower end of which engageswith the recess in the lug u.

By this construction the cap can, by means of the hand-lever, be made toregister its perforations exactly with those in the pipe A to obtain thegreatest flow of water; or the perforations in the cap can be made topartially register with those in the perforated pipe to lessen the flowof water; or the perforations may be entirely closed, thus cutting offthe flow entirely; or the flow may be varied at pleasure.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

The perforated pipe A, attached to a streetcurb or suitable support, andconnected by a suitable pipe with a hydrant or water-supply, incombination with the sliding perforated cap O, having recessed lug u,hand-lever D, and guides s, substantially as described, and for thepurpose set forth.

JOHN HOFFMAN.

Witnesses:

EDWARD MCGARTY, W. H. A. READ.

